NEC Versa LXi Series User manual

NEC Versa®LXi Series Notebook Computers
VERSA LXI
SERVICE AND REFERENCE
MANUAL

Preface vii
Preface
This service and reference manual contains the technical information necessary to set up and
maintain the NEC Versa ® LXi notebook computer.
The manual also provides hardware and interface information for users who need an overview of
the system design. The manual is written for NEC-trained customer engineers, system analysts,
service centre personnel, and dealers.
The manual is organized as follows:
Chapter 1, “System Overview,” provides an overview of the hardware and interface
components.
Chapter 2,“System Configuration and Setup,” provides information on setup and how to
operate the notebook.
Chapter 3,“Disassembly and Reassembly,” provides detailed instructions on how to
disassembly the notebook.
Chapter 4,“System Board Layout,” shows the system boards and the board connectors.
Chapter 5, “Preventive Maintenance,” lists general notebook preventive maintenance
procedures.
Chapter 7, “Troubleshooting,” lists troubleshooting procedures as well as helpful servicing
hints.
Chapter 8, “Specifications,” lists physical specifications, connector locations, memory map and
interrupt controllers.
A Glossary and an Index are included for convenience.

ix
Aampere
AC alternating current
AGP Advanced Graphics Port
AT advanced technology
(IBM PC)
BBS Bulletin Board Service
BCD binary-coded decimal
BCU BIOS Customized Utility
BIOS basic input/output system
bit binary digit
BUU BIOS Upgrade Utility
bpi bits per inch
bps bits per second
Ccapacitance
Ccentigrade
Cache high-speed buffer storage
CAM constantly addressable
memory
CAS column address strobe
CD-ROM compact disk-ROM
CG character generator
CGA Colour Graphics Adapter
CGB Colour Graphics Board
CH channel
clk clock
cm centimetre
CMOS complementary metal oxide
semiconductor
COM communication
CONT contrast
CPGA ceramic pin grid array
CPU central processing unit
DAC digital-to-analogue converter
DACK DMA acknowledge
DC direct current
DIP dual in-line package
DLAB Divisor Latch Address bit
DMA direct memory access
DMAC DMA controller
DOS disk operating system
DRAM dynamic RAM
DVD digital video disk
ECC error checking and correction
ECP enhanced capabilities port
EDO extended data output
EGA Enhanced Graphics Adapter
EPP enhanced parallel port
EPROM erasable and programmable
ROM
EVGA Enhanced Video Graphics
Array
FFahrenheit
FAX facsimile transmission
FCC Federal Communications
Commission
FG frame ground
FM frequency modulation
FP fast page
FRU field-replaceable unit
GB gigabyte
GND ground
HEX hexadecimal
Hz hertz
IC integrated circuit
ID identification
IDE intelligent device electronics
IDTR interrupt descriptor table
register
in. inch
INTA interrupt acknowledge
IPB illustrated parts breakdown
IR infrared
IRR Interrupt Request register
ISA Industry Standard Architecture
ISR In Service register
I/O input/output
IPC integrated peripheral
controller
ips inches per second
IRQ interrupt request
Kkilo (1024)
kkilo (1000)
KB kilobyte
kg kilogram
kHz kilohertz
Abbreviations

x
lb pound
LED light-emitting diode
LCD liquid crystal display
LSB least-significant bit
LSI large-scale integration
Mmega
mA milliamps
max maximum
MB megabyte
MDA Monochrome Display Adapter
MFM modified frequency modulation
MHz megahertz
mm millimetre
ms millisecond
MSB most-significant bit
NASC National Authorized Service
Center
NC not connected
NMI Non-maskable Interrupt
ns nanosecond
NSRC National Service Response
Center
PAL programmable array logic
PCB printed circuit board
PCI Peripheral Component
Interconnect
PDA personal digital assistant
PFP plastic flat package
PIO parallel input/output
pixel picture element
PLCC plastic leaded chip carrier
PLL phase lock loop
p-p peak-to-peak
PPI programmable peripheral
interface
PROM programmable ROM
QFP quad flat pack
RAM random-access memory
RAMDAC RAM digital-to-analogue
converter
RAS row address strobe
RGB red green blue
RGBI red green blue intensity
ROM read-only memory
rpm revolutions per minute
Rread
RTC real-time clock
R/W read/write
Sslave
SCSI Small Computer System
Interface
SDRAM synchronous dynamic
random-access memory
SG signal ground
SIMM single inline memory module
SPM standard page mode
SRS Sound Retrieval System
SVGA Super Video Graphics Array
SW switch
TFT thin film transistor
TSC Technical Support Centre
TTL transistor/transistor logic
tpi tracks per inch
USB universal serial bus
Vvolt
Vac volts, alternating current
Vdc volts, direct current
VESA video electronics standards
association
VFC VESA-compliant feature
connector
VGA Video Graphics Array
VRAM video RAM
Wwatt
Wwrite
XGA Extended Graphics Array

Contents iii
Contents
Preface............................................................................................................................................vii
Abbreviations ..................................................................................................................................ix
1 System Overview
Getting to Know the NEC Versa ....................................................................................................1-2
Around the Front of the System......................................................................................................1-3
LCD Panel ...............................................................................................................................1-3
Base Unit .................................................................................................................................1-3
Operating Status LEDs.............................................................................................................1-4
Power Button ................................................................................................................1-4
Keyboard .................................................................................................................................1-5
Front Features ..........................................................................................................................1-7
Around the Back of the System......................................................................................................1-8
Around the Left Side of the System................................................................................................1-9
Around the Right Side of the System............................................................................................1-10
Around the Bottom of the System.................................................................................................1-11
Internal Components....................................................................................................................1-12
Hard Disk Drive.....................................................................................................................1-12
File Bay..................................................................................................................................1-12
VersaBay III...........................................................................................................................1-12
CPU Board.............................................................................................................................1-12
Audio Board...........................................................................................................................1-12
Main Battery ..........................................................................................................................1-12
CMOS Battery........................................................................................................................1-12
Bridge Battery........................................................................................................................1-12
ChipSet........................................................................................................................................1-13
2 System Configuration and Setup
Power Sources for Your NEC Versa...............................................................................................2-2
Using the AC Adapter ..............................................................................................................2-2
Connecting the AC Adapter......................................................................................................2-2
Powering the System On and Off..............................................................................................2-3
Using the Battery......................................................................................................................2-3
Determining Battery Status.......................................................................................................2-4
Battery Gauge LEDs.................................................................................................................2-5
Low Battery Status...................................................................................................................2-5
Returning the Battery to its normal state....................................................................................2-5
Extending Battery Life..............................................................................................................2-5
Battery Handling......................................................................................................................2-6
Replacing the Battery ...............................................................................................................2-6
Battery Precautions...................................................................................................................2-9
Precautions for Recharging the Battery .....................................................................................2-9
System Batteries.......................................................................................................................2-9
Main Battery ...............................................................................................................2-10
CMOS Battery.............................................................................................................2-10
Bridge Battery.............................................................................................................2-10
Optional Battery..........................................................................................................2-10
BIOS Setup..................................................................................................................................2-10
BIOS Setup Main Menu .........................................................................................................2-11
Looking at Screens.................................................................................................................2-11
Using Keys.............................................................................................................................2-12
Checking/Setting System Parameters......................................................................................2-12
Resetting System Parameters..................................................................................................2-13
Standard CMOS Setup............................................................................................................2-13